| Table 6. Twelve-month nutrient requirements for 1000-pound range cows with calf birth dates in February. | ||||||||||
Dry
Gestation | 3rd
Trimester | Early
Lactation | Lactation | |||||||
Ration | Pasture | Ration | Pasture | Ration | Pasture | Ration | Spring Pasture | Summer Pasture | Fall Pasture | |
| Days | 90 | 32 | 45 | 31 | 137 |
30 | ||||
| Daily Requirements in Pounds | ||||||||||
| Dry Matter | 21 | 24 | 24 | |||||||
| Energy (TDN) | 10.98 | 14.30 | 13.73 | |||||||
| Crude Protein | 1.64 | 2.52 | 2.30 | |||||||
| Calcium | 0.05 | 0.07 | 0.06 | |||||||
| Phosphorus | 0.03 | 0.05 | 0.04 | |||||||
| Production Period Requirements in Pounds | ||||||||||
| Dry Matter | 1890 | 768 | 1080 | 744 | 3288 |
720 | ||||
| Energy (TDN) | 988.20 | 457.60 | 617.85 | 425.63 | 1881.01 | 411.90 | ||||
| Crude Protein | 147.60 | 80.64 | 103.50 | 71.30 | 315.10 | 69.00 | ||||
| Calcium | 4.50 | 2.24 | 2.70 | 1.86 | 8.22 | 1.80 | ||||
| Phosphorus | 2.70 | 1.60 | 1.80 | 1.24 | 5.48 | 1.20 | ||||
| 12-Month Requirements in Pounds | ||||||||||
|
Totals
for | Totals
for | Totals
for | ||||||||
| Dry Matter | 3738 | 4752 | 8490 | |||||||
| Energy (TDN) | 2063.65 | 2718.54 | 4782.19 | |||||||
| Crude Protein | 331.74 | 455.40 | 787.14 | |||||||
| Calcium | 9.44 | 11.88 | 21.32 | |||||||
| Phosphorus | 6.10 | 7.92 | 14.02 | |||||||